Mitsubishi Electric MELSEC iQ-R RD78G4 - Page 160

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5 ADVANCED SYNCHRONOUS CONTROL INITIAL POSITION
5.4 Synchronous Control Analysis Mode
Synchronous control system control data
*1 When the synchronous control analysis mode is executed simultaneously or the synchronous control analysis mode and the
synchronous control start are executed simultaneously for multiple axes, perform the setting for the synchronous control start in batches
for each word. If the axes are set continuously in bits, the synchronous control analysis mode and the synchronous control start may not
operate depending on the timing.
*2 The range from axis 1 to 4 is valid in the 4-axis module, from axis 1 to 8 is valid in the 8-axis module, and from axis 1 to 16 is valid in the
16-axis module.
Example
The following shows a procedure of aligning the synchronous position of an output axis that references the input axis.
1. Set the following values in the synchronous control initial position parameters.
2. Turn ON the target axis bit of "[Cd.381] Synchronous control analysis mode", and then turn the target axis bit from OFF
to ON in "[Cd.380] Synchronous control start" to start the synchronous control analysis mode.
3. Verify the target axis bit is OFF for "[Cd.380] Synchronous control start", and execute positioning for the output axis to be
updated to "[Md.409] Cam axis command position value".
4. Turn OFF the target axis bit of "[Cd.381] Synchronous control analysis mode", and then turn the target axis bit from OFF
to ON in "[Cd.380] Synchronous control start" to start synchronous control.
Setting item Setting details Setting value Default
value
Buffer memory address
Axis 1 to axis 16
[Cd.380]
Synchronous
control start
• Synchronous control begins if the target axis
bit is turned ON.
• Synchronous control ends if the bit is turned
OFF during synchronous control.
Fetch cycle: Operation cycle
■Set the target axis in bit.
*1
Set with the following buffer memory addresses.
• Buffer memory address: 36320
(bit0: axis 1 to bit15: axes 16
*2
)
OFF: Synchronous control end
ON: Synchronous control start
0 36320
[Cd.381]
Synchronous
control
analysis mode
• Synchronous control begins if the target axis
bit is turned ON.
Fetch cycle: At operation start (Synchronous
control)
■Set the target axis in bit.
Set with the following buffer memory addresses.
• Buffer memory address: 36322
(bit0: axis 1 to bit15: axes 16
*2
)
OFF: Synchronous control analysis mode OFF
ON: Synchronous control analysis mode ON
0 36322
Setting item Setting value
[Pr.460] Setting method of position value per cycle after main shaft gear 2: Calculate from input axis
[Pr.462] Cam axis position restoration object 2: Cam axis command position value restoration
[Pr.463] Setting method of cam reference position 0: Previous value
[Pr.464] Setting method of cam axis position value per cycle 2: Position value per cycle after main shaft gear
Buffer memory address: 36320
b0
b15 b12
b8
b4
Axis 1 to 16
Buffer memory address: 36322
b0
b15 b12
b8
b4
Axis 1 to 16